Increased food energy supply as a major driver of the obesity epidemic: a global analysis.
Increased food energy supply as a major driver of the obesity epidemic: a global analysis.
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DOI：
10.2471/blt.14.150565
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发表时间：
2015-07-01
影响因子：
11.1
通讯作者：
Swinburn BA
中科院分区：
文献类型：
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作者：
Vandevijvere S;Chow CC;Hall KD;Umali E;Swinburn BA
我们调查了国家食物能量供应和平均人口体重变化之间的关系。我们收集了来自24个高收入国家、27个中等收入国家和18个低收入国家的数据，这些数据来自全球数据库、国家健康和营养调查报告以及同行评议论文。平均体重的变化来自至少相隔4年的研究对（不同年份，1971-2010）。选定的研究对被认为是代表青少年或成年人的人口，在国家或国家以下的规模。粮食能源供应数据取自联合国粮食及农业组织的粮食平衡表。我们估计人口的能量需求在调查时间点使用医学研究所方程。最后，我们估计了能量摄入的变化，理论上可以解释观察到的平均体重变化，使用实验验证的模型。在56个国家，食物能量供应的增加与平均体重的增加有关。在45个国家中，食物能源供应的增长高于模型预测的能源摄入量增长。食物能量供应变化与体重变化之间的关联在总体和高收入国家都具有统计学意义（P < 0.001）。研究结果表明，食物能量供应的增加足以解释平均人口体重的增加，特别是在高收入国家。需要作出政策努力，改善粮食系统和环境的健康状况，以减少全球肥胖。
We investigated associations between changes in national food energy supply and in average population body weight. We collected data from 24 high-, 27 middle- and 18 low-income countries on the average measured body weight from global databases, national health and nutrition survey reports and peer-reviewed papers. Changes in average body weight were derived from study pairs that were at least four years apart (various years, 1971–2010). Selected study pairs were considered to be representative of an adolescent or adult population, at national or subnational scale. Food energy supply data were retrieved from the Food and Agriculture Organization of the United Nations food balance sheets. We estimated the population energy requirements at survey time points using Institute of Medicine equations. Finally, we estimated the change in energy intake that could theoretically account for the observed change in average body weight using an experimentally-validated model. In 56 countries, an increase in food energy supply was associated with an increase in average body weight. In 45 countries, the increase in food energy supply was higher than the model-predicted increase in energy intake. The association between change in food energy supply and change in body weight was statistically significant overall and for high-income countries (P < 0.001). The findings suggest that increases in food energy supply are sufficient to explain increases in average population body weight, especially in high-income countries. Policy efforts are needed to improve the healthiness of food systems and environments to reduce global obesity.